Improvement in harvesters



0. GOLAHAN.

Harvester.

No. 215,322. Patented May 13, 1879-.

' jnzzezziaz? UNITED STATES PATENT OEEIoE.

CHARLES COLAHAN, OF CLEVELAND, OHIO.

IMPROVEMENT IN HARVESTERS.

Specification forming part of Letters Patent No. 215,322, dated May 13,1879; application filed June 3, 1878.

To all whom it may concern:

Be it known that I, CHARLES COLAHAN, of Cleveland, county of Cuyahoga,and State of Ohio, have invented certain new and useful Improvements inHarvesters, of which the following is a specification.

My. invention relates more especially to the elevating aprons orcarriers for elevating or carrying the straw from the platform, on whichit falls as it is cut by the harvester, and elevating the same to thereceptacle for binding.

Figure 1 represents arear view in elevation. Fig. 2 represents avertical transverse sectional view. Figs.3,4, and 5 represent dilferentviews of the motive or driving rollers, over which the conveying apronsor belts pass. Said rollers are parallel andusually located at the topof the elevator-frame, power being transmitted from themain drive-wheelof the machine by the usual devices, while the rollers are immedi atelyactuated from chain or belt 1;, fixed to the shaft of the lower roller,revolvingin boxes, while on same shaft is attached a spur-gear, a, whichactuates a corresponding; gear on the shaft of the corresponding roller.

In my invention, the one roller being set in stationary boxes, the shaftthereto is rigidly secured, while the other roller, 2', being yieldingor elastic, the shaft m thereto is attached by a universalfiexiblejoint, D D, in Fi 5, inside of said roller, at a point distantfrom the gear, said roller being hollow, to admit of the vertical risingand falling of said carrier. This roller, it will be observed, passesthrough the inside guides or strip over which the apron runs at thesides, to admit of the vertical play of said guide with roller andapron, and the support at the outer end of shaft on admits of its freeoscillation, and its wheel or gear will rock and roll while actuated inits revolving movements by the corresponding gear. Thus Isecure anelastic or floating upper elevatingapron in a compact close form.

Said elevator or compressing apron is supported so as to secure a freeopen space parallel with its corresponding lower apron or ele vator, andmay be held thereto by any ordinary appliance such as springs on eachside thereof, while it is free to rise in its revolving movement when anunusual quantity of straw or grain is being elevated, and is not liableto choke or clog up, and thereby stop the machine, and large or smallquantities of straw pass up through the elevators with equal certainty,while its elasticity prevents the crushing of the heads in tangled ripegrain or thrashing it in elevating.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of the floating apron, the side pieces of its frame,the yielding actuating roller journaled in said side pieces at the headthereof, the oscillating gearwheel and its shaft, and theuniversal-joint connection between the roller and the shaft, locatedwithin the journals and protected by the cylindrical recess of theroller.

2. The oscillating geanwheel, in combination with the fixed gear-wheel,the vertically-playing-pulley, and thefloating apron, substantially asshown, and for the purposes described.

CHAS. COLAHAN.

Witnesses:

WALTER C. LARNED, EDWIN C.'LARNED.

